The scores on the wechsler adult intelligence scale are approximately normal with μ = 100 and σ = 15. the proportion of adults with scores between 80 and 120 is closest to:

The proportion adults with scores between 80 and 120 is closest to 0.8176 or 81.76%.

We follow these steps in order to find the

We first need to the Z scores for X = 80 and X =120

We calculate the Z scores as :

Substituting we get,

and

The area to the left of Z₁ is 0.09121122 , while the area to the left of Z₂ is 0.90878878

So, we need to find the area between Z₂ and Z₁ in order to arrive at the proportion between adults with scores 80 and 120.

d. all of the above are true.

according to the song of roland, the characteristics of an ideal knight are: loyalty to the king, skilled warriors and horseman, valiant, bold, courageous, strong and proud in battle. they should be determined to fulfil their duties and willing to die to make their people safe.